t Tests

Question 1

what is the formula of the t-Test used to determine whether the mean of the sample chosen is significantly different from the population mean?

Answer 1

t = (mean of the sample - mean of the population) divided by standard error of the mean

called: t-Test for a difference between a sample mean and a population mean

Question 2

name of the most common t-Test used to determine whether performance difference between two groups of subjects is significant

Answer 2

t-Test for a difference between two independent means

Question 3

what is the formula of the t-Test used to determine the significance of a difference between two correlated means

Answer 3

t = (mean of X scores - mean of Y scores) divided by the standard error of difference scores

called: t-Test for related measures

Question 4

groups X and Y will have the ___ number of measures because they either represent the same subject or matched pairs of subjects

re: t-Test for related measures

Answer 4

same